- All sections
- A - Human necessities
- A61B - Diagnosissurgeryidentification
- A61B 3/032 - Devices for presenting test symbols or characters, e.g. test chart projectors
Patent holdings for IPC class A61B 3/032
Total number of patents in this class: 829
10-year publication summary
|
85
|
63
|
74
|
66
|
70
|
89
|
79
|
61
|
59
|
39
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Essilor International (compagnie Generale D'optique) | 2968 |
83 |
| Carl Zeiss Vision International GmbH | 676 |
28 |
| Zenni Optical, Inc. | 100 |
22 |
| Nidek Co., Ltd. | 341 |
20 |
| Raytrx, LLC | 65 |
15 |
| University of Miami | 860 |
12 |
| Light Field Lab, Inc. | 166 |
12 |
| Genentech, Inc. | 4061 |
11 |
| Alcon, Inc. | 5688 |
11 |
| Warby Parker Inc. | 121 |
11 |
| Rodenstock GmbH | 390 |
10 |
| EyeQue Inc. | 35 |
10 |
| 6 Over 6 Vision Ltd | 39 |
9 |
| Topcon Corporation | 1162 |
9 |
| Verily Life Sciences LLC | 1653 |
9 |
| Visibly, Inc. | 21 |
9 |
| Johnson & Johnson Vision Care, Inc. | 1179 |
8 |
| Siview | 23 |
8 |
| West Texas Technology Partners, LLC | 206 |
8 |
| Samsung Electronics Co., Ltd. | 153573 |
7 |
| Other owners | 517 |